GitHub user kiszk opened a pull request:
https://github.com/apache/spark/pull/21037
[SPARK-23919][SQL] Add array_position function
## What changes were proposed in this pull request?
The PR adds the SQL function `array_position`. The behavior of the function is based on
Presto's one.
The function returns the position of the first occurrence of substr in the given string
using 1-based index as BigInt.
## How was this patch tested?
Added UTs
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kiszk/spark SPARK-23919
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/21037.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #21037
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commit 80fc7b0cb5c61345d05bee971b13e44727b1e108
Author: Kazuaki Ishizaki <ishizaki@...>
Date: 2018-04-11T06:21:07Z
initial commit
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